High [CVE-2026-50527] .NET Framework: Denial of Service via network-based buffer overflow
This high-severity Red Hat Linux advisory covers CVE-2026-50527 affecting Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions.
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Summary
Stack-based buffer overflow in.NET Framework allows an unauthorized attacker to deny service over a network. Successful exploitation can lead to a denial of service (DoS), making the affected system unavailable to legitimate users.
Red Hat severity: Important — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-120.
Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.6 Extended Update Support; Red Hat Hardened Images.
Red Hat lists Red Hat OpenShift Dev Spaces as not affected.
Red Hat fixing advisory: RHSA-2026:41893, RHSA-2026:41895, RHSA-2026:41897, RHSA-2026:58566, RHSA-2026:58567, RHSA-2026:41899, RHSA-2026:41900, RHSA-2026:41901, RHSA-2026:41894, RHSA-2026:41896, RHSA-2026:41898, RHSA-2026:58568, RHSA-2026:58569, RHSA-2026:58570, RHSA-2026:26638, RHSA-2026:27171, RHSA-2026:42145.
Affected products named by the advisory: Red Hat package: dotnet8.0; Red Hat package: dotnet9.0; Red Hat package: dotnet10.0.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 4 days ago·verify at source
- dotnet8.0-0:8.0.129-1.el10_2
- dotnet9.0-0:9.0.119-1.el10_2
- dotnet10.0-0:10.0.110-1.el10_2
- dotnet8.0-0:8.0.130-1.el10_0
- dotnet9.0-0:9.0.120-1.el10_0
- dotnet9.0-0:9.0.119-1.el8_10
- dotnet10.0-0:10.0.110-1.el8_10
- dotnet8.0-0:8.0.129-1.el8_10
- dotnet8.0-0:8.0.129-1.el9_8
- dotnet9.0-0:9.0.119-1.el9_8
- dotnet10.0-0:10.0.110-1.el9_8
- dotnet8.0-0:8.0.130-1.el9_4
- dotnet8.0-0:8.0.130-1.el9_6
- dotnet9.0-0:9.0.120-1.el9_6
- dotnet10-0-main-10.0.109-1.hum1
- dotnet9-0-main-9.0.118-1.hum1
- dotnet8-0-main-8.0.129-2.1.hum1
- RHSA-2026:41893
- RHSA-2026:41895
- RHSA-2026:41897
- RHSA-2026:58566
- RHSA-2026:58567
- RHSA-2026:41899
- RHSA-2026:41900
- RHSA-2026:41901
- RHSA-2026:41894
- RHSA-2026:41896
- RHSA-2026:41898
- RHSA-2026:58568
- RHSA-2026:58569
- RHSA-2026:58570
- RHSA-2026:26638
- RHSA-2026:27171
- RHSA-2026:42145
Official advisory · high-confidence parse· fetched 4 days ago·verify at source
Mitigation
Upgrade to a fixed release: dotnet8.0-0:8.0.129-1.el10_2, dotnet9.0-0:9.0.119-1.el10_2, dotnet10.0-0:10.0.110-1.el10_2, dotnet8.0-0:8.0.130-1.el10_0, dotnet9.0-0:9.0.120-1.el10_0, dotnet9.0-0:9.0.119-1.el8_10. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 4 days ago·verify at source
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